Pop quiz! What fabric can withstand the intensity of a factory worker’s day, but still be stylish enough to wear to Fashion Week? Which fabric was worn by both James Dean and Farrah Fawcett? Which fabric is literally the greatest ever made? If you guessed denim, you’re right. We’re loving a recent article by Cosmo detailing the 10 reasons denim is the greatest invention ever. You don’t even need 10 to convince us!